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2025 Compare Cities Politics & Voting:
Boulder, CO vs Ontario, CA

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Highlights
- Registered voters in Ontario are 25.9% less likely to be registered as Democrats than registered voters in Boulder.
- Registered voters in Boulder, are 31.7% more likely to be registered as Democrats, than in the rest of the United States.
 Boulder, COOntario, CAUnited States
 Democrat  Unlock52.1%48.0%
 Republican22.0%  Unlock45.9%
 Independent Other  Unlock6.4%6.0%
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